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Lost Soul Ultra

Lethbridge, Canada • 5-6 Sep 2025

Lost Soul Ultra takes place in the Oldman River valley near Lethbridge, Alberta, on lands of the Blackfoot, Cree and Metis. The event offers three distances: 100 mile, 100K, and 50K. A single 51 km lap climbs about 1,100 m (3,600 ft), with most hills 50–80 m and about 14 rises per lap.

In 2025 the course starts and finishes at Softball Valley; the 100K is two laps of the 50K course, and the 100 mile includes an extra 9 km at the start. It’s billed as the prairie’s toughest race with renowned aid stations; finishers receive a large etched rock. WSER qualifiers: 100 mile and 100K; entrants must be 18+. Visit the organization's website for the most recent information.

Canada Alberta Lethbridge

Race information

Website Registration
100 mi
1100 m+
100 Mile
100 km
100k
50 km
50k
Visit the organization's website for the most recent information.
Trail runs nearby

The Oldman Backyard Ultra

Lethbridge

Set beside the Oldman River in Lethbridge, Alberta, The Oldman Backyard Ultra unfolds among rolling coulees. Runners tackle a 6.7 km loop and can choose to complete 1, 5, 10, or 50 laps. The event embraces the distinctive backyard ultra format, with an hour-based cadence that challenges endurance wh..